Prior to 1976, the federal Medicaid program paid for
about 300,000 abortions a year. However, after the
Hyde Amendment went into effect for FY 1977, the
funding levels dropped dramatically. In FY 1977,
182,000 abortions were funded. In FY 1986, the
number was 232; in FY 2000, 109; in FY 2004, 159.
nchla.org/datasource/ifactsheets/4FSHydeAm22a.08.pdf
Parental involvement laws reduced the minor abortion rate by an average of 1.67 abortions per 1,000 females between the ages of 13 and 17.
Medicaid funding restrictions reduced the minor abortion rate by an average of 2.34 abortions per 1,000 females between the ages of 13 and 17.
heritage.org/Research/Family/cda07-01.cfm
The Pope adressed this directly:
Not all moral issues have the same moral weight as abortion and euthanasia. For example, if a Catholic were to be at odds with the Holy Father on the application of capital punishment or on the decision to wage war, he would not for that reason be considered unworthy to present himself to receive Holy Communion. While the Church exhorts civil authorities to seek peace, not war, and to exercise discretion and mercy in imposing punishment on criminals, it may still be permissible to take up arms to repel an aggressor or to have recourse to capital punishment.
There may be a legitimate diversity of opinion even among Catholics about waging war and applying the death penalty, but not however with regard to abortion and euthanasia.